Home / 14,111.64-19,429.72-11,982.70

Finding the Fourth Proportional to 14,111.64, 19,429.72 and 11,982.70

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Solution

The fourth proportional to 14,111.64, 19,429.72 and 11,982.70 is: 16,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.64 : 19,429.72 = 11,982.70 : x
  2. Step 2: Convert to fraction form
    14,111.64/19,429.72 = 11,982.70/x
  3. Step 3: Cross multiply
    14,111.64x = 19,429.72 × 11,982.70
  4. Step 4: Simplify right side
    14,111.64x = 232,820,505.84
  5. Step 5: Solve for x
    x = 232,820,505.84/14,111.64
  6. Step 6: Final answer
    x = 16,498.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.